Hernandez is coming off a highlight-reel knockout in his major
league debut against Beneil
Dariush at UFC 222. The San Antonio, Texas, native has just one
loss in his mixed martial arts career, in contrast to nine wins. He
has won seven straight.

Aubin-Mercier (11-2) is riding a four-bout winning streak and
defeated Evan Dunham
in just 53 seconds at UFC 223 on April 7.

UFC on Fox 30 goes down at the Scotiabank Saddledome, in Calgary,
Alberta, Canada, on July 28 and will be headlined by a rematch
pitting lightweight conteners against each other in Dustin
Poirier and Eddie
Alvarez.